Home / 1,168,017.20-1,611,751.60-709,382.72

Finding the Fourth Proportional to 1,168,017.20, 1,611,751.60 and 709,382.72

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Solution

The fourth proportional to 1,168,017.20, 1,611,751.60 and 709,382.72 is: 978,880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,017.20 : 1,611,751.60 = 709,382.72 : x
  2. Step 2: Convert to fraction form
    1,168,017.20/1,611,751.60 = 709,382.72/x
  3. Step 3: Cross multiply
    1,168,017.20x = 1,611,751.60 × 709,382.72
  4. Step 4: Simplify right side
    1,168,017.20x = 1,143,348,733,972.35
  5. Step 5: Solve for x
    x = 1,143,348,733,972.35/1,168,017.20
  6. Step 6: Final answer
    x = 978,880.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.